Capacitive Or Inductive Stylus Patents (Class 178/19.03)
  • Patent number: 10352740
    Abstract: The description relates to devices having sensing tips and releasably retaining the sensing tips. One example includes a tip holder that defines a cavity that receives the sensing tip. This example also includes first and second clamps positioned radially around the tip holder and extending through holes in the tip holder into the cavity to contact the sensing tip. The example further includes a flexible clamp band positioned around the first and second clamps and biasing the first and second clamps inwardly against the sensing tip.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: July 16, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bradley E. Clements, Xiaoyue Xie
  • Patent number: 10296109
    Abstract: A handheld device includes a conductive tip configured to interact with a capacitive based digitizer sensor, an active transmission module, a reflective transmission module, a switch configured to connect the conductive tip to one of the active transmission module and the reflective transmission module and a controller configured to toggle position of the switch. The active transmission module configured to generate a first signal on the conductive tip independent from a drive signal transmitted on the digitizer sensor. The reflective transmission module is configured to generate a second signal on the conductive tip based on the drive signal transmitted on the digitizer sensor and picked by the conductive tip during interaction with the digitizer sensor.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: May 21, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ahia Peretz, On Haran
  • Patent number: 10240990
    Abstract: An electronic ink cartridge includes, in a direction of a central axis within a cylindrical body, a core body extended out from a distal end of the cylindrical body, a coupling member disposed on a side of a proximal end of the cylindrical body, a coil housed between the core body and the coupling member and having a predetermined inductance, and a pressure sensitive element whose capacitance changes according to pressure applied to the core body. Two terminals of the coil are electrically connected respectively to two terminals of the pressure sensitive element to thereby form two terminals of a resonance circuit formed by the coil and the pressure sensitive element. A connecting terminal electrically connected to at least one of the two terminals of the resonance circuit is disposed on a proximal end surface side of the coupling member to be accessible thereon from outside.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: March 26, 2019
    Assignee: Wacom Co., Ltd.
    Inventor: Masayuki Obata
  • Patent number: 10198089
    Abstract: An electrode for an input device can be designed to reduce wobble over a range of input device orientations. The electrode can include a spherical portion and a tapered portion. In some examples, the electrode can linearly taper away from the spherical portion. In other examples, the electrode can non-linearly taper away forming an elliptical flare. Additionally or alternatively, the electrode can include a spring-loaded member that can couple the electrode to other circuitry of the input device. Additionally or alternatively, the electrode can include a neck portion coupled to the tapered portion, and part of the neck portion can be shielded. The input device can include a first non-conductive material disposed on part of the spherical portion of the electrode and a second non-conductive material disposed between part of the electrode and the first non-conductive material.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: February 5, 2019
    Assignee: Apple Inc.
    Inventors: Priyanka Bhandari, Blake R. Marshall, Li-Quan Tan, Reza Nasiri Mahalati, Aidan N. Zimmerman, Ryan P. Brooks, Kevin C. Armendariz
  • Patent number: 10185454
    Abstract: An active stylus is capacitively coupled to a capacitive touch panel for communication. The active stylus operates in a wait mode to receive initial communications from the panel. In response to such receipt, the active stylus synchronizes to a repeating communications frame implementing time division multiplexing. Communications from the active stylus to the panel include: information communications; synchronization communications and communications specific for columns and/or rows of the panel. Communications from the panel to the active stylus may be addressed uniquely to the stylus or commonly to a group of styluses.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: January 22, 2019
    Assignee: STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Praveesh Chandran, Baranidharan Karuppusamy, Giuseppe Noviello, Chee Weng Cheong, Leonard Liviu Dinu, Dianbo Guo, Kien Beng Tan, Chaochao Zhang
  • Patent number: 10168803
    Abstract: According to an aspect, a pointing device used to indicate a position on a touch detecting device includes: a first output unit provided to a body of the pointing device with which a hand of a user holding the pointing device comes into contact; and a first signal generating unit that generates a palm detection signal including a first code and different from a signal detected in a touch operation with the pointing device, and outputs the palm detection signal to the first output unit.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: January 1, 2019
    Assignee: Japan Display Inc.
    Inventors: Tatsunori Nagai, Masahiro Togashi
  • Patent number: 10120466
    Abstract: A pen input device having malfunction prevention function and method of preventing malfunction thereof are disclosed. The pen input device includes: a housing having a bar form and having one end relatively narrowly opened to form a housing space; a resonant circuit housed within the housing; a tip that protrudes from an open end of the housing to the outside, the tip comprising a dielectric material and being configured to be movable within a predetermined range in a direction of a longitudinal axis of the housing, the tip being further configured to be self-centering; and a ground shielding portion formed in a portion of the housing in which electromagnetic induction occurs, the ground shielding portion not including the tip.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 6, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyounghwan Park, Eunseok Hong, Shinho Kim, Wonseob Kim
  • Patent number: 10101897
    Abstract: An electronic stylus may include a wireless interface, a memory, and a processor. The wireless interface may be configured to send and receive signals to and from at least a first computing system and a second computing system. The memory may be configured to store text. The processor may be configured to store, in the memory, a text string received from the first computing system via the wireless interface, and send, to the second computing system via the wireless interface, the text string received from the first computing system.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: October 16, 2018
    Assignee: GOOGLE LLC
    Inventors: Thomas Buckley, Alexander Friedrich Kuscher, Katie Leah Roberts-Hoffman
  • Patent number: 10082894
    Abstract: A synchronized time difference signal transmitting method and capacitive styluses as well as a touch input apparatus applying this method are disclosed. The touch input apparatus uses a time difference synchronization module and the capacitive styluses use synchronization interfaces to synchronize time difference of the signal transmitting of the capacitive styluses.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: September 25, 2018
    Assignee: Waltop International Corporation
    Inventor: Chia-Jui Yeh
  • Patent number: 10082895
    Abstract: A capacitive stylus and a touch control apparatus applying synchronized time difference signal transmitting method are disclosed. The capacitive styluses transmit data to a touch control apparatus via wireless communication modules respectively. A non-transitory computer-readable medium of the touch control apparatus storing instructions executable to perform a synchronized time difference signal transmitting method to synchronize time difference of the signal transmitting of the capacitive styluses.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 25, 2018
    Assignee: Waltop International Corporation
    Inventors: Chung-Fuu Mao, Chia-Jui Yeh
  • Patent number: 10073558
    Abstract: A position detecting device includes two different types of sensors. A position indicator includes resonant circuits that enable detection of the position indicator by a first sensor both when a first end of a chassis of the position indicator is oriented toward the position detecting device and when a second end of the chassis is oriented toward the position detecting device. The position indicator also includes a conductive cap that is provided at the second end of the chassis and that enables detection of the position indicator by a second sensor when the second end is brought close to the position detecting device. A control circuit included in the position detecting device changes processing according to when the control circuit is receiving only one of an output signal from a detection circuit coupled to the first sensor and an output signal from a detection circuit coupled to the second sensor and when the control circuit is receiving the output signals from both detection circuits.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: September 11, 2018
    Assignee: WACOM CO., LTD.
    Inventors: Takeshi Kobori, Toshihiko Horie
  • Patent number: 10055033
    Abstract: An active capacitive stylus and methods for touch detection and feedback actuation thereof are disclosed. The active capacitive stylus includes a conductive tip, a signal processing module and a capacitor. The conductive tip is configured to detect a touch-screen actuation signal emitted from a touch screen and to transfer a feedback actuation signal output from the signal processing module. The signal processing module is configured to process the touch-screen actuation signal received by the conductive tip and to synchronously produce the feedback actuation signal. The capacitor is disposed between the conductive tip and the signal processing module and is configured to couple the touch-screen actuation signal obtained by the conductive tip to an input of the signal processing module during the detection and to isolate the feedback actuation signal during the feedback actuation. It is achievable to accurately determine the position of the conductive tip of the active capacitive stylus.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 21, 2018
    Assignees: SHANGHAI YISHANG INFORMATION TECHNOLOGY CO., LTD., IPEN TECHNOLOGY LIMITED
    Inventors: Jianfeng Zhang, Xitian Zhou
  • Patent number: 10019079
    Abstract: A handheld device includes a conductive tip configured to interact with a capacitive based digitizer sensor, an active transmission module, a reflective transmission module, a switch configured to connect the conductive tip to one of the active transmission module and the reflective transmission module and a controller configured to toggle position of the switch. The active transmission module configured to generate a first signal on the conductive tip independent from a drive signal transmitted on the digitizer sensor. The reflective transmission module is configured to generate a second signal on the conductive tip based on the drive signal transmitted on the digitizer sensor and picked by the conductive tip during interaction with the digitizer sensor.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: July 10, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ahia Peretz, On Haran
  • Patent number: 9910546
    Abstract: The invention allows size reduction of a sensor of a position detecting device of a capacitive system, which detects a position indicated by an indicator. The sensor has plural electrode conductors that are disposed adjacent to each other and are configured to receive a signal from the indicator on a first surface of a substrate having the first surface and a second surface opposed to each other. The position detecting device includes a signal processing circuit including a differential amplifier circuit that calculates a difference between signals from at least two of the plural electrode conductors. Plural connecting lines are formed on the second surface of the substrate. The plural connecting lines each have one end connected to one of the plural electrode conductors disposed on the first surface by a through-hole or a via formed through the substrate, and the other end connected to a line-concentrated part.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: March 6, 2018
    Assignee: Wacom Co., Ltd.
    Inventor: Hideyuki Hara
  • Patent number: 9898103
    Abstract: A stylus for use with a digitizer sensor includes a housing confined by a first and second end, a primary tip positioned at the first end of the housing and associated with a first transmitting element, the first transmitting element having a first diameter, a secondary tip positioned at the second end of the housing and associated with a second transmitting element, the second transmitting element having a second diameter that is larger than the first diameter, a transmitting unit for transmitting a first signal with a first amplitude via the first transmitting element and for transmitting a second signal with a second amplitude via the second transmitting element, wherein the first amplitude is at least twice the second amplitude and a powering unit for powering transmission of the first and second signal.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: February 20, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yuval Stern, Ilan Geller, Yair Leshem
  • Patent number: 9886104
    Abstract: Embodiments of amplifiers and electrodes for capacitive styluses are disclosed. The amplifiers detect an input signal from a capacitive touch sensor, such as a touchscreen or touchpad, amplify and invert the signal, and emit the amplified and inverted signal to cause the capacitive touch sensor to detect a touch. The electrode sets, or tips, pair a sensing electrode and an emitting electrode, shielded from each other to limit interference, in a fine-point non-deforming configuration that improves usability over existing stylus tips.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 6, 2018
    Assignee: Adonit Co., Ltd.
    Inventors: Zachary Joseph Zeliff, Yueh Hua Li, TK Kao, Joseph Lin, Kuang Hou
  • Patent number: 9846520
    Abstract: An active stylus is capacitively coupled to a capacitive touch panel for communication. The active stylus operates in a wait mode to receive initial communications from the panel. In response to such receipt, the active stylus synchronizes to a repeating communications frame implementing time division multiplexing. Communications from the active stylus to the panel include: information communications; synchronization communications and communications specific for columns and/or rows of the panel. Communications from the panel to the active stylus may be addressed uniquely to the stylus or commonly to a group of styluses.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: December 19, 2017
    Assignee: STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Praveesh Chandran, Baranidharan Karuppusamy, Giuseppe Noviello, Chee Weng Cheong, Leonard Dinu, Dianbo Guo, Kien Beng Tan, Chaochao Zhang
  • Patent number: 9740312
    Abstract: A stylus includes a housing that extends along a longitudinal direction and includes an opening on one end, a tip that extends along the longitudinal direction and through the opening and a sensor configured to detect displacement of the tip in a direction perpendicular to the longitudinal direction.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: August 22, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Eliyahu Barel
  • Patent number: 9665189
    Abstract: A touch stylus capable of detecting pressure on its tip is disclosed in the present disclosure. The touch stylus includes a body, a tip, and a pressure sensing module disposed between the body and the tip for detecting a pressure on the tip. The pressure sensing module includes a lighting unit, a pressure sensing unit connected to the tip, and a controller electrically connected to the lighting unit and the pressure sensing unit. The pressure sensing unit detects a movement of the tip relative to the body, and generates a corresponding electrical signal. The controller receives the electrical signal to drive the lighting unit for generating a corresponding optical signal. A scintillating frequency of the optical signal and a value of the electrical signal are in direct proportion, and an optical detector can transform the optical signal into the pressure on the tip.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: May 30, 2017
    Assignee: Wistron Corporation
    Inventors: Kuo-Hsing Wang, Pei-Chen Chin, Pin-Hsien Su, Wen-Chin Wu, Yi-Sheng Kao
  • Patent number: 9639182
    Abstract: A capacitive stylus, as an inputting device of a touch sensitive device, comprises a pen and a detachable eraser. The pen comprises a tip for writing on a screen of the touch sensitive device, a control circuit for emitting signals to the touch sensitive device, and a battery for providing electricity to the control circuit. The eraser includes an erasing circuit and a first end to combine with the pen, so that the erasing circuit electrically connects with the control circuit. The eraser includes a second end that is compressible, so that the control circuit can emit an erasing signal to the touch sensitive device.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 2, 2017
    Assignee: Waltop International Corporation
    Inventors: Ying Hwa Tang, A-Li Wong
  • Patent number: 9606680
    Abstract: A stylus device is disclosed that enables a computing device to communicate to the stylus device using a capacitive link. In an aspect, the stylus device detects a change in an electric field generated by the computing device. A message including data is received from the computing device via the change in the electric field. The message may include an identifier corresponding to a data encoding scheme to be used for sending data to the computing device. Based on the identifier, the stylus device may configure itself to operate using the data encoding scheme.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: March 28, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventor: Kishore Sundara-Rajan
  • Patent number: 9576548
    Abstract: A touch panel is disclosed. The touch panel is detects a position of a stylus, which includes first and second resonance circuits. The touch panel includes first and second coils respectively extending in first and second directions. Each of the first coils emits a first signal having a first frequency and receives a second signal having a second frequency, where emitting the first signal and receiving the second signal are successively and respectively performed by the plurality of second coils. In addition, each of second coils emits a second signal having the second frequency and receives a first signal having the first frequency, where emitting the second signal and receiving the first signal are successively performed. The first resonance circuit of the stylus generates the first signal after receiving the first signal, and the second resonance circuit of the electromagnetic stylus generates the second signal after receiving the second signal.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: February 21, 2017
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Qijun Yao, Feng Lu, Xianxiang Zhang
  • Patent number: 9575579
    Abstract: In some examples, a stylus holder comprises a connector to attach to a port of a computing device and create an electrical connection to the computing device port, and a fastener to attach a stylus to the holder and provide at least one of a data and power connection to the stylus. The fastener includes a first inductive element formed in an internal cavity area of the fastener, the first inductive element to inductive couple to a second inductive element of the stylus, the second inductive element longer than the first inductive element.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: February 21, 2017
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Britt C. Ashcraft, Ki Bok Song, Eric Chen
  • Patent number: 9535513
    Abstract: A thin electromagnetic handwriting pen includes a casing unit, a circuit unit, an electromagnetic unit and a pen core unit. The casing unit includes a thin pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the thin pen-shaped casing structure. The electromagnetic unit includes a hollow holder and an electromagnetic coil wound around the hollow holder. Both the hollow holder and the electromagnetic coil are embedded in the thin pen-shaped casing structure, and the electromagnetic coil is fixed between the thin pen-shaped casing structure and the hollow holder and electrically connected to the circuit substrate. The pen core unit includes a pen core structure movably disposed inside the thin pen-shaped casing structure and passing through the hollow holder, and one portion of the pen core structure is exposed outside the thin pen-shaped casing structure.
    Type: Grant
    Filed: May 18, 2014
    Date of Patent: January 3, 2017
    Assignee: Wacom Co., Ltd.
    Inventors: Chien-Chia Lien, Hung-I Wang, Cheng-Lu Liu
  • Patent number: 9519358
    Abstract: A pen-shaped coordinate indicator is provided, which is capable of preventing erroneous detection of the pressing force (writing pressure) and widening the detection range of the pressing force. The indicator includes a core body that forms a pen tip; a columnar first magnetic body having one end in contact with the core body and having another end opposing a columnar second magnetic body; and an elastic body provided between the first and second magnetic bodies. The elastic body is composed of a main body and at least one projection provided thereon, wherein the projection has a smaller resistance to the pressing force applied to the core body than the main body. When the pressing force is applied, initially the projection is mainly deformed, and thereafter the main body is mainly deformed to thereby change a distance between the first and second magnetic bodies according to the pressing force device.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: December 13, 2016
    Assignee: Wacom Co., Ltd.
    Inventor: Toshihide Chikami
  • Patent number: 9519363
    Abstract: A stylus for a capacitive touch screen includes an inverting charge integrator circuit is connected to a conductive tip for providing an output signal proportional to a charge induced at the conductive tip. An inverting amplifier generates an amplified signal proportional to the signal output from the inverting charge integrator. A conductive contact provides electrical or capacitive coupling between the amplified signal and an exterior of the stylus which may provide electrical or capacitive coupling with a person holding the stylus. In other embodiments, the order of the inverting charge integrator and the inverting amplifier may be reversed. A power supply circuit powers the inverting charge integrator and the inverting amplifier. Shielding may be implemented to isolate the stylus circuitry and prevent oscillation. The provided circuitry may enable a ball point or other fine point stylus tip configurations.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: December 13, 2016
    Assignee: JCM Electronic Stylus, LLC
    Inventor: John Conrad Mann
  • Patent number: 9513723
    Abstract: A stylus for use with a digitizer sensor includes a housing confined by a first and second end, a primary tip positioned at the first end of the housing and associated with a first transmitting element, the first transmitting element having a first diameter, a secondary tip positioned at the second end of the housing and associated with a second transmitting element, the second transmitting element having a second diameter that is larger than the first diameter, a transmitting unit for transmitting a first signal with a first amplitude via the first transmitting element and for transmitting a second signal with a second amplitude via the second transmitting element, wherein the first amplitude is at least twice the second amplitude and a powering unit for powering transmission of the first and second signal.
    Type: Grant
    Filed: August 30, 2015
    Date of Patent: December 6, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yuval Stern, Ilan Geller, Yair Leshem
  • Patent number: 9377880
    Abstract: A position indicator includes: a core body disposed within a casing such that a tip thereof projects from one opening of the casing; a printed board on which a circuit element for detecting pressing force applied to the tip is disposed; and a pen pressure detecting module formed by arranging, in an axial direction, plural parts for detecting a displacement corresponding to the pressing force. The plural parts are arranged within a hollow portion of a cylindrical holder portion housed within the casing. The holder portion has an opening portion in a side circumferential surface thereof. The opening portion is opened in a direction perpendicular to the axial direction. At least one of the parts is/are housed into the hollow portion through the opening portion. The holder portion includes a locking portion configured to prevent the at least one of the parts from falling out through the opening portion.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 28, 2016
    Assignee: Wacom Co., Ltd.
    Inventors: Yasuyuki Fukushima, Hiroyuki Fujitsuka
  • Patent number: 9310899
    Abstract: A stylus and an electronic device are provided, wherein the electronic device includes a body and a stylus. The body has a capacitive touch panel. The stylus includes a handle, a head, an elastic member and an electret. The handle has a main body and a chamber disposed within the main body. The main body has a holding portion and a first end. The holding portion is electrically connected with the first end. The head is assembled to the first end so as to be capable of sliding into the chamber, and the head is a rigid body. The elastic member is disposed in the chamber and located between chamber walls of the chamber and the head. The electret is assembled to the head and located within the chamber.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: April 12, 2016
    Assignee: HTC Corporation
    Inventors: Tun-Chun Yang, Chih-Jen Hu
  • Patent number: 9218073
    Abstract: An apparatus comprising a stylus with a dynamically switch tip shield is provided. The apparatus includes an elongated stylus housing having an end, a conductive tip disposed at least partially inside the stylus housing and extending from the end, a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and an object, a tip shield coupled with the stylus housing and extending from the end, and a switch coupled to the tip shield and the conductive tip. The force sensor may be an inductive sensor, a capacitive sensor, a piezo sensor, a force sensing resistor sensor, or an optical sensor.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: December 22, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventors: Viktor Kremin, Andriy Ryshtun, David G. Wright
  • Patent number: 9218070
    Abstract: Methods and apparatus are provided to further facilitate detection not only of a position on a position detector pointed to by a pointing member, but also of information other than the position information such as pen pressure applied to the pointing member, in a position detection apparatus of the electrostatic coupling type. In one embodiment, a pointing member includes a first electrode substantially in the form of a rod, a substantially cylindrical second electrode disposed in such a manner as to surround the first electrode, and a transmission signal production section for producing a signal of a first frequency f1 and another signal of a second frequency f2 different from the first frequency f1 and controlling a phase difference between the signals in response to pressure applied to the pointing member.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: December 22, 2015
    Assignee: Wacom Co., Ltd.
    Inventors: Yasuo Oda, Yoshihisa Sugiyama
  • Patent number: 9122322
    Abstract: A stylus for use with a digitizer sensor includes a housing confined by a first and second end, a primary tip positioned at the first end of the housing and associated with a first transmitting element, the first transmitting element having a first diameter, a secondary tip positioned at the second end of the housing and associated with a second transmitting element, the second transmitting element having a second diameter that is larger than the first diameter, a transmitting unit for transmitting a first signal with a first amplitude via the first transmitting element and for transmitting a second signal with a second amplitude via the second transmitting element, wherein the first amplitude is at least twice the second amplitude and a powering unit for powering transmission of the first and second signal.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 1, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yuval Stern, Ilan Geller, Yair Leshem
  • Patent number: 9032292
    Abstract: The present disclosure provides for a touch screen electronic device to display two or more running applications simultaneously in a side-by-side layout in a split screen mode of the device. Two or more applications that are running on an operating system of the device can be easily displayed simultaneously in the split screen mode while maintaining one of the displayed applications as active so that the user can provide user inputs to the active application.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: May 12, 2015
    Assignee: BlackBerry Limited
    Inventor: Joshua John Lavallee
  • Patent number: 8988376
    Abstract: In one embodiment, a method comprises generating a first charge at a capacitor system having a magnitude based on the magnitude of a second charge present at a capacitive node of a touch sensor in the absence of a touch with respect to the capacitive node. The method further includes generating a third charge at the capacitive node of the touch sensor in the presence of a touch with respect to the capacitive node. The first charge and the third charge are summed to cancel out at least a portion of the third charge. The method further includes integrating, by an integrator, the sum of the first charge and the third charge to generate an output voltage.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 24, 2015
    Assignee: Atmel Corporation
    Inventors: Lauri Ilmari Lipasti, Jukka Sakari Riihiaho
  • Patent number: 8982044
    Abstract: A position detector includes a tablet and a position indicator, which includes a coil and configured to continuously transmit a coil-based signal to the tablet as a position signal and to intermittently transmit the coil-based signal to the tablet as a non-positional signal. The tablet is configured to detect a position on its surface pointed to by the position indicator by detecting the continuously-transmitted coil-based signal, and to determine non-positional information regarding the position indicator (e.g., pen pressure, pen ID, etc.) by detecting the intermittently-transmitted coil-based signal.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 17, 2015
    Assignee: Wacom Co., Ltd.
    Inventor: Yuji Katsurahira
  • Patent number: 8970507
    Abstract: Methods of waking a portable electronic device are disclosed. In one embodiment, the method comprises: causing the portable electronic device to enter a sleep mode in which a touch-sensitive display is deactivated a force sensing transducer measures forces applied to the touch-sensitive display at a reduced rate relative to a rate of a full power mode when in the sleep mode; causing a force sensing transducer to measure forces applied to the touch-sensitive display at the rate of the full power mode in response to detection of an inertial event; causing the touch-sensitive display to be reactivated in response to detection of a force which is greater than a predetermined wake force threshold; and causing the portable electronic device to wake in response to detection of a touch event within a first predetermined duration of the detection of the force which is greater than a predetermined wake force threshold.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: March 3, 2015
    Assignee: BlackBerry Limited
    Inventors: Marc Edward Holbein, Kevin Howard Orr, Aleksandar Sasha Papo, Adam Louis Parco, Christopher James Grant
  • Patent number: 8963889
    Abstract: A position detection apparatus of the electrostatic coupling type is provided, to detect not only a position of a pointer but also information other than the position information such as, for example, pointer pressure or side switch information. The pointer transmits two codes such that a pressure applied to a pen tip is associated with a time difference between the two codes. A position detector carries out a correlation matching operation between signals generated in reception conductors and correlation calculation codes corresponding to the two codes, to thereby detect a position on a sensor section pointed to by the pointer from a result of the correlation matching operation and based on at least one of the codes.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: February 24, 2015
    Assignee: Wacom Co., Ltd.
    Inventors: Yasuo Oda, Sadao Yamamoto, Yoshihisa Sugiyama
  • Patent number: 8947405
    Abstract: An electromagnetic stylus includes a hollow body, a pen-nib device, an energy transforming device, a circuit board, and an electricity storage device. The pen-nib device is disposed at one end of the hollow body. The energy transforming device is disposed in the hollow body for converting variations in a physical quantity into electrical signals. The circuit board is disposed in the hollow body and electrically connected to the energy transforming device for rectifying the electrical signals transformed by the energy transforming device. The electricity storage device is disposed in the hollow body and electrically connected to the pen-nib device, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: February 3, 2015
    Assignee: Wistron Corporation
    Inventors: Chu-Shun Cho, Pei-Chen Chin, Wen-Chin Wu, Pin-Hsien Su, Ming-Hua Hung, Chuan-Cheng Fu
  • Patent number: 8947404
    Abstract: A stylus may have a flat portion on a movable tip at one end for contact with a flat surface, or a stylus may have movable pins adjustable in response to contact pressure for use with a non-flat surface.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: February 3, 2015
    Assignee: Atmel Corporation
    Inventors: Nigel Stephen Daniel Hinson, Thomas Matthew Bell
  • Patent number: 8941617
    Abstract: An image input-output device includes a pixel which displays an image and reads an image. The pixel includes a photodetector element, a color layer, and a display element. The color layer is provided over the photodetector element and the display element is provided over the color layer, so that the distance between the photodetector element and the color layer is reduced. Accordingly, light is likely to enter the predetermined photodetector element through the predetermined color layer, and thus, even a color object can be read correctly.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: January 27, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jun Koyama, Shunpei Yamazaki
  • Patent number: 8937604
    Abstract: A touch-responsive capacitive apparatus includes means for defining first and second surfaces, a first micro-wire layer formed on the first surface, the first micro-wire layer including a plurality of electrically connected first micro-wires, a second micro-wire layer formed on the second surface, the second micro-wire layer including a plurality of electrically connected second micro-wires, and a polarizing dielectric structure located between the first and second micro-wire layers.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: January 20, 2015
    Assignee: Eastman Kodak Company
    Inventor: Ronald Steven Cok
  • Patent number: 8928635
    Abstract: An active stylus is disclosed. The stylus includes an electrode at a tip of the stylus; and powered circuitry coupled to the electrode and configured for capacitively coupling the electrode with a capacitive touch sensor panel. The powered circuitry can further include drive circuitry configured to output a drive voltage at the electrode and/or sense circuitry configured to sense a voltage received at the electrode.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: January 6, 2015
    Assignee: Apple Inc.
    Inventors: Jonah A. Harley, David I. Simon
  • Patent number: 8907932
    Abstract: A system includes an electronic pen, functionally integrated with a personal computer for the acquisition and processing of signals associated with signatures, which can be network connected together with other personal computers. Each personal computer has connected as peripherals an electronic pen that includes two groups of inertial accelerometers that capture kinetic data and data about contact microvibrations with the writing support. The electronic pen also includes one self-referential optical navigation sensor that captures a series of data pairs, as momentary movements necessary in the reconstruction of the trajectory of the electronic pen and which, together with the kinetic data captured by the set of inertial accelerometers, represents personal computer input data for sensorial fusion processing and for creating the conditions to extract the information from the sensorial and psychomotric representation of a user's perspective.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: December 9, 2014
    Assignee: Softwin S.R.L.
    Inventors: Mircea Sorin Rusu, Adrian Dinescu, Stefan Stelian Diaconescu
  • Patent number: 8901549
    Abstract: The present invention provides an organic light emitting diode touch display panel including a substrate, a plurality of first electrodes and a plurality of second electrodes disposed on the substrate, a plurality of light emitting layers, a plurality of dielectric layers, a plurality of first electrode stripes, and a plurality of second stripes. Each light emitting layer is disposed on each first electrode, and each dielectric layer is disposed on each second electrode. Each first electrode stripe is disposed on the light emitting layers in each row, and each second electrode stripe is disposed on the dielectric layers in each row. Each first electrode, each light emitting layer and each first electrode stripe form an organic light emitting diode, and each second electrode, each dielectric layer and each second electrode stripe form a touch sensing capacitor.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: December 2, 2014
    Assignee: HannStar Display Corp.
    Inventors: Chien-Hsiang Huang, Kun-Hua Tsai, Jun-Shih Chung, Chun-Hsi Chen
  • Patent number: 8878797
    Abstract: An analog front end circuit utilizes coherent detection within a capacitance measurement application. The analog front end circuit uses coherent detection to measure capacitance of a touch screen display. An analog excitation signal is modulated by a capacitor to be measured. The modulated signal is synchronously demodulated using a correlator, which includes a discrete mixer and a discrete integrator. The excitation signal is also input to the mixer such that the modulated signal is multiplied by the excitation signal. The excitation signal is an analog signal having a sine wave function or other waveform.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: November 4, 2014
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Ozan E. Erdogan, Guozhong Shen, Rajesh Anantharaman, Ajay Taparia, Behrooz Javid, Syed T. Mahmud, Rahim Chowdhury
  • Patent number: 8878823
    Abstract: An apparatus comprising a stylus with a dynamically switch tip shield is provided. The apparatus includes an elongated stylus housing having an end, a conductive tip disposed at least partially inside the stylus housing and extending from the end, a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and an object, a tip shield coupled with the stylus housing and extending from the end, and a switch coupled to the tip shield and the conductive tip.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 4, 2014
    Assignee: Cypress Semiconductor Corporation
    Inventors: Viktor Kremin, Andriy Ryshtun
  • Patent number: 8847894
    Abstract: A method, system, and medium are provided for providing tactile feedback in association with contact to a touchscreen display of a mobile device. One embodiment of the method includes receiving a touch input to a touchscreen display area provided by a user of the mobile device. The touch input selects a predetermined region within the touchscreen display area. Incident to the touch input of the predetermined region, a mechanical indicator on the rear of the mobile device is physically manipulated to provide an indication to the user that the predetermined region was selected by the user.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: September 30, 2014
    Assignee: Sprint Communications Company L.P.
    Inventors: Woojae Lee, Sanjay K. Sharma, Peter S. Syromiatnikov, Cesar Perez
  • Patent number: 8847886
    Abstract: A non-contact input apparatus for computer peripheral includes an induction module and a pointing module. The induction module includes an electric supply coil and an induction element, and the pointing module includes an energy coil and a non-linear element. The electric supply coil is used to send a first oscillation signal. The energy coil receives the first oscillation signal. The non-linear element converts the first oscillation signal to be a second oscillation signal having multiple higher harmonics. The induction element generates a control signal based on the second oscillation signal.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 30, 2014
    Assignee: Kye Systems Corp.
    Inventors: Ho-Sung Wu, Chih-Min Liu
  • Patent number: 8836668
    Abstract: A touch-responsive capacitive apparatus includes a transparent substrate having first and second pad and interstitial areas. Pairs of first and second pad areas define corresponding touch-responsive capacitors. Electrically connected first pad micro-wires are formed in the first pad areas and electrically connected first interstitial micro-wires are formed in the first interstitial areas. The first pad micro-wires are electrically connected to the first interstitial wires. Electrically connected second pad micro-wires are formed in the second pad areas and electrically connected second interstitial micro-wires are formed in the second interstitial areas. The second pad micro-wires are electrically connected to the second interstitial wires. The height of at least a portion of the first interstitial micro-wires is greater than the height of at least a portion of the first pad micro-wires.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 16, 2014
    Assignee: Eastman Kodak Company
    Inventor: Ronald Steven Cok
  • Patent number: 8803835
    Abstract: It is provided a touch screen device applied in an electronic information technology area. In the touch screen device supporting an active capacitance stylus, a demodulation unit demodulates a signal received by a reception unit by two orthogonal signals, and then an amplitude recovery unit recovers an amplitude of the signal received by the reception unit, the amplitude of the signal received by the reception unit can be recovered relatively exactly without the need that the demodulation signal must be synchronous with the signal received by the reception unit (or the signal transmitted from the active capacitance stylus), and there is no need to add additional hardware resources for synchronization in the touch screen device of the embodiment of the present invention compared with the existing detection method which needs to perform synchronization of the demodulation signal and the signal transmitted from the active capacitance stylus in the prior art.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: August 12, 2014
    Assignee: FocalTech Systems, Ltd.
    Inventors: Chen Li, Lianghua Mo, Jingkai Zhang, Xinxi Jiang, Huaiyi Xu